Empty element on bootclasspath breaks test/tools/apt/Discovery/discovery.sh
Root cause analysis is the same for 6760805
empty element on bootclasspath breaks test/tools/apt/Compile/compile.sh
Fix is the same: delete META-INF/services/com.sun.mirror.apt.AnnotationProcessorFactory
from current directory after using it to create jar files, to avoid false positives
from bootstrapclassloader.